CVE-2021-27417

eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc). The unverified memory assignment can lead to arbitrary memory allocation, resulting in a heap-based buffer overflow.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.6 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:H
icscertCNA
4.6 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 40%
VendorProductVersion
ecoscentricecospro
2.0.1 ≤
𝑥
≤ 4.5.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04